* {
    margin: 0;
    padding: 0;
}

html,body {
    height: 100%;
}

.main {
    height: 100%;
}

.left {
    width: 15%;
    background-color: #2d353a;
    float: left;
    min-height:100%;
    color:#a1aeaf;
}

.item {
    height: 50px;
    line-height: 50px;
    font-size: 19px;
    padding: 0 10px;
    position: relative;
}

.item span {
    float: left;
}

.item i {
    position: absolute;
    right: 10px;
    top: 50%;
    margin-top: -8px;
    width: 0;
    height: 0;
    border:8px solid transparent;
    border-left-color: #adb5b3;
}
.item i:after {
    content: "";
    position: absolute;
    width: 0;
    height: 0;
    border: 8px solid transparent;
    border-left-color: #2d353a;
    left: -12px;
    top: -8px;
}

.item:hover {
    background-color: #6d7175;
}

.item:hover i:after {
    border-left-color: #6d7175;
}

.item:hover span {
    color: #fff;
}

.right {
    float: right;
    width: 85%;
    min-height:100%;
}

/* 导航样式 */
.banner-wrapper  {
    position: relative;
    overflow-x: hidden;
}

.banner-inner-wrapper {
    width: 400%;

}

.banner-inner-wrapper img {
    width: 25%;
    float: left;
}

.banner-container {
    position: relative;
}

.arrow-wrapper {
    position: absolute;
    top: 50%;
    width: 100%;
}

.arrow-left {
    position: absolute;
    width: 0;
    height: 0;
    left: 20px;
    border:16px solid transparent;
    border-right-color: #b8c8dd;
    cursor: pointer;
}


.arrow-right {
    position: absolute;
    width: 0;
    height: 0;
    right: 20px;
    border:16px solid transparent;
    border-left-color: #b8c8dd;
    cursor: pointer;
}

.nav-dotted {
    position: absolute;
    bottom: 20px;
    right: 50px;
}

.circle {
    width: 15px;
    height: 15px;
    background-color: #131d3b;
    border-radius: 50%;
    float: left;
    margin: 0 6px;
    cursor: pointer;
}

.circle.on {
    background-color: #fff;
}

.nav-container {
    width: 90%;
    margin: 50px auto;
}

.nav-item {
    width: 20%;
    float: left;
    text-align: center;
}

.nav-logo {
    width: 85px;
    height: 85px;
    background-image: url(../img/path_new.png);
    background-position: -3px -10px;
    display: block;
    margin: 0 auto;
}

.first-text {
    color: #333;
}

.second-txt {
    color: #969b9c;
    margin-top: 10px;
}

.nav-logo.second {
    background-position-y: -104px;
}
.nav-logo.third {
    background-position-y: -200px;
}
.nav-logo.fourth {
    background-position-y: -294px;
}
.nav-logo.fifth {
    background-position-y: -392px;
}




